【摘要】 首先对金属屏蔽的机理以及Schelkunoff电磁屏蔽理论进行了分析,然后采用磁控溅射的方法在PET塑料上沉积了Cu/1Cr18Ni9Ti,并采用波导的方法对样品的屏蔽效能进行了测试。研究表明:单次反射损耗对屏蔽效能的贡献最大,双面金属膜层比单面金属膜层具有更高的屏蔽效果。更多还原

【Abstract】 Discusses the electromagnetic shielding mechanism of metal films and Schelkunoff electromagnetic shielding theory.Then,the Cu/1Cr18Ni9Ti metal thin films were deposited on the PET plastic as substrate by magnetron sputtering,and the shielding effectiveness of the samples was tested by means of waveguide.The results showed that the single reflection loss is the dominant contributing factor to shielding effectiveness(SE) and that the double-side metal films have a better SE than single-side ones.更多还原